Setting up the DNS on a router device is recommended for enterprises where all the traffic is directed to the internet through a router device. You also have the option to configure your DNS server (if available) to take the most advantage of Lumu Continuous Compromise Assessment on your entire network.

For more context on Lumu Deployment scenarios, consult Lumu Deployment and Integration Guide.

This article covers setting the DNS servers on a router with direct connectivity to the internet.

Requirements

1. Administrative access to the router device.
2. A browser to access your router administrative interface.

Remember that for using Lumu DNS servers through Lumu Gateways collectors, you first need to register your public IP address or group of IPs as a gateway for your company at the Lumu Portal before configuring your DNS. If you are using Lumu Virtual Appliance (VA) as a DNS resolver, remember first to deploy and configure your VA.

Edit the DNS settings

Every router may use different configuration tools and custom interfaces. We recommend consulting the manufacturer's support website that corresponds with your exact router model.

Most modern routers provide a configuration interface (administration panel) that can be accessed using your web browser as if it were a website. The page is served to your browser directly from the router.

First, navigate to your router’s local address, you can type the IP address of your router as you do with URLs (example: http://192.168.0.1/  or http://192.168.1.1/). You may need a password to have access to your router settings.  After accessing your router’s configuration panel, search for the DNS settings. It might look like this:

Example of a router's admin panel to set DNS

Before making any changes, we recommend writing down your current settings as back-up before changing DNS addresses.

Enter the Lumu DNS server addresses (or Virtual Appliance IP, if applicable) as the router's DNS server settings and save/apply. Some routers have you restart the router to apply the changes. Make sure that your DNS is set to be static.

Remember: The Lumu default DNS resolvers IPv4 addresses are: 

50.17.0.10

3.87.85.24

Validate Your Settings

The final step is to verify that your DNS connections are correctly routed through Lumu. See Validate your DNS Settings for more information.